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Structural Optimization of a Control Arm with Consideration of Durability Criteria

내구기준을 고려한 컨트롤 암의 구조최적설계

  • 김종규 (동아대학교 대학원 기계공학과) ;
  • 박영철 (동아대학교 기계공학과) ;
  • 김영준 ((주) 센트랄 중앙 연구소) ;
  • 이권희 (동아대학교 기계공학과)
  • Published : 2009.11.01

Abstract

This study suggests a structural design process for the upper control arm installed at a vehicle. Static strength and durability are the most important responses in the structural design of a control arm. This study considers the static strength in the optimization process. The inertia relief method for FE analysis is utilized to simulate the static loading conditions. According to the classification of structural optimization, the structural design of a control arm is included in the category of shape optimization. In this study, the metamodel technique using the kriging method is adopted to obtain the minimum weight satisfying the strength constraint. Then, the final design is suggested by considering the durability criteria. The durability assessment is obtained by the index of fatigue durability called the SWT (Smith-Watson-Topper) index. The final optimum shape has been proposed by trial and error method.

Keywords

Metamodel;Kriging;Shape Optimization;Durability

References

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